package com.lwei.tallybook.client.config;

import lombok.extern.log4j.Log4j2;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

/**
 * 从spring容器中取bean支持
 * @author sks.lwei
 */
@Log4j2
@Component
public class SpringSupport implements ApplicationContextAware {

    private static ApplicationContext applicationContext;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        if(SpringSupport.applicationContext == null) {
            SpringSupport.applicationContext = applicationContext;
        }

        log.info("-------------------SpringUtil 加载完成-------------------");
    }

    /**
     * 获取applicationContext
     */
    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }

    /**
     * 通过name获取 Bean.
     */
    public static Object getBean(String name){
        return getApplicationContext().getBean(name);
    }

    /**
     * 通过class获取Bean.
     */
    public static <T> T getBean(Class<T> clazz){
        return getApplicationContext().getBean(clazz);
    }

    /**
     * 通过name,以及Clazz返回指定的Bean
     */
    public static <T> T getBean(String name, Class<T> clazz){
        return getApplicationContext().getBean(name, clazz);
    }

}
